Quarterly Financial Information

12 Months Ended

Dec. 31, 2011

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Text Block]

Quarterly Financial Information (unaudited)

The following is the unaudited quarterly financial information for 2011, 2010, and 2009:

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
	(in thousands, except share data)
Year Ended December 31, 2011
Total revenues	$	40,050	$	42,267	$	42,602	$	44,050
Gross Profit	32,743		33,353		33,895		35,389
Operating income	15,634		18,605		17,954		16,556
Net income	15,164		22,348		16,536		17,330
Net income per common share:
Basic	$	0.40	$	0.57	$	0.44	$	0.48
Diluted	$	0.37	$	0.53	$	0.41	$	0.44
Year Ended December 31, 2010
Total revenues	$	31,603	$	32,207	$	33,281	$	35,097
Gross Profit	24,540		24,780		25,863		27,406
Operating income	12,759		13,008		13,082		13,658
Net income	12,384		14,010		16,681		15,944
Net income per common share:
Basic*	$	0.36	$	0.40	$	0.48	$	0.45
Diluted*	$	0.32	$	0.36	$	0.43	$	0.42
Year Ended December 31, 2009
Total revenues	$	20,668	$	22,421	$	23,292	$	31,304
Gross Profit	16,367		17,889		18,827		23,328
Operating income	8,357		9,260		9,783		11,856
Net income	8,335		8,956		9,434		12,097
Net income per common share:
Basic*	$	0.28	$	0.29	$	0.30	$	0.36
Diluted*	$	0.23	$	0.24	$	0.25	$	0.31

* Reflects the 3-for-1 stock split dated January 4, 2010; see Note 2